Playing toady not in the Constitution

The Star Tribune editorial today, "Americans need their Congress back", included this statement:

And rarely has a Congress so willingly abandoned its constitutional role to play toady to a president’s agenda.

I know there are many who believe that when the president says, “Jump,” Congress is supposed to ask, “How high, Mr. President.” I don’t find that in the Constitution.

I think the editors meant,

And rarely has a Congress so willingly abandoned its constitutional role and played toady to a president’s agenda.